sb/{ICH7,NM10,PCH}: Use common watchdog_off function

Change-Id: I704780b6ae7238560dcb72fc027addc1089e0674
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32533
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: David Guckian

src/southbridge/intel/ibexpeak/Kconfig

@@ -40,6 +40,7 @@ config SOUTH_BRIDGE_OPTIONS # dummy
 	select HAVE_INTEL_CHIPSET_LOCKDOWN
 	select HAVE_POWER_STATE_AFTER_FAILURE
 	select HAVE_POWER_STATE_PREVIOUS_AFTER_FAILURE
+	select SOUTHBRIDGE_INTEL_COMMON_WATCHDOG
 
 config EHCI_BAR
 	hex

src/southbridge/intel/ibexpeak/Makefile.inc

@@ -31,7 +31,6 @@ ramstage-y += ../common/pciehp.c
 ramstage-srcs += src/mainboard/$(MAINBOARDDIR)/hda_verb.c
 
 ramstage-y += ../bd82x6x/me_status.c
-ramstage-y += ../bd82x6x/watchdog.c
 
 ramstage-$(CONFIG_ELOG) += ../bd82x6x/elog.c
 ramstage-y += madt.c